Home / 56,724.20-78,278.10-35,515.16

Finding the Fourth Proportional to 56,724.20, 78,278.10 and 35,515.16

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Solution

The fourth proportional to 56,724.20, 78,278.10 and 35,515.16 is: 49,010.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,724.20 : 78,278.10 = 35,515.16 : x
  2. Step 2: Convert to fraction form
    56,724.20/78,278.10 = 35,515.16/x
  3. Step 3: Cross multiply
    56,724.20x = 78,278.10 × 35,515.16
  4. Step 4: Simplify right side
    56,724.20x = 2,780,059,246.00
  5. Step 5: Solve for x
    x = 2,780,059,246.00/56,724.20
  6. Step 6: Final answer
    x = 49,010.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.